The only downside is that it sends notifications that cannot be turned off without also turning features off.

Please make it possible to toggle notifications on or off.

Its good. However if the web page is not found in web.archive.org also, then it repeatedly tries to load the same archive page again and again in infinite loop.

Good extension, but one alternative may prove more useful for you.

If you primarily use the archive.org Wayback Machine, I would probably recommend their extension over this, as it can automatically fetch pages from it that receive 404 errors, which provides a seamless experience. (A feature this app may consider adding, along a configurable default source source.)

However, this extension is useful in that in addition to the Wayback Machine, it also provides access to archive.is and Google WebCache.

If "Automatic page retrieval for "Problem loading Page"" is activated, the addon will try to open about:newtab on archive.org. This shouldn't be happening.

extremely good addon , you can save and recall archives very easily

Loving it, but it really needs a shortcuts 'fix'. I spent 2 hours figuring out why my tabs gets closed after I press only letter x for example..now I 'disabled all shortcuts' as suggested by dev. Thank You and keep up the good work!

I really like that Get Archive is not only using the WayBackMachine, but also archive.is and others.

Got one beef so far, though: would be awesome if there was an option to disable notifications. Whenever I reach a 404 or something similar, the add-on in Firefox on macOS spawns a notification in Notification Center.

Opening the bookmarks menu with alt+l causes a dutch wikipedia search page to appear:
https://nl.wikipedia.org/w/index.php?title=Speciaal:VerwijzingenZoeken&target=https%3A%2F%2Fde.wikipedia.org%2F
The only way to avoid this is to activate "Disable all shortcuts" in the settings.
Please throw all your private shortcuts out of the code and use the extension "Shortkeys" instead.
Besides, a convenient tool.

When playing a flash word game, pressing G always cancels my game and replaces it with a google search. I see no way to disable this. Why even have a hot-key that doesn't require a modifier anyway? If there were some way to give fewer stars than one, I'd do it!

I've used it for all of 5 minutes but it seems to work pretty well. In basic setup, if you're looking at a page that won't load you can just click the toolbar icon and a new tab will pop up loading it in your archive service of choice. The addon does too many other things; lots of shortcuts and changing of copy/paste behavior. But you can easily disable all that.